On Mon, Aug 06, 2012 at 04:33:49PM -0400, Michael Richardson wrote:
> No, the fridge must have a globally reachable address (GUA) to be reachable.
You are correct, of course, and I was being unclear; sorry about that.
I was trying to reflect what I thought I heard in the discussion in
Vancouver, though, which was that a FQDN or the equivalent would be the
best way to handle naming of remotely accessible devices. It seemed to
me that we had rough consensus on that point (perhaps I was mistaken),
but not on naming of devices on "island" networks.
> Tunnels are okay, but to use them, but has to get the DNS search order
> and the DNS server list right, and that's walled garden territory.
> *If* we are going to turn each home into a walled garden, then let's be
> aware that we are doing that.
For the purposes of my mom's house, I do think "walled garden" is the
appropriate default setting, but our design should allow the default
to be overridden without great difficulty.
I think this general plan would meet those goals:
1) All discoverable devices on all networks MUST answer
to a locally reachable name, such as <devicename>.local,
<devicename>.sitelocal, <devicename>.<networkname>.local,
<devicename>.<ULA>, <devicename>-<ULA>.local, etc. (We
haven't settled the naming convention here. I personally like
<devicename>.<networkname>.local, with <devicename>.<ULA>.local
as a fallback in the event of the network's owner failing to
configure a network name);
2) Networks configured to allow remote access to devices
SHOULD have a globally reachable domain name, either owned
by the user or in a vendor-managed namespace;
3) If a device is configured for remote access and is on a
network which has had a FQDN configured as in (2), then
in addition to the locally reachable name described in (1),
the device MUST also answer to "<devicename>.<FQDN>".
--
Evan Hunt -- [email protected]
Internet Systems Consortium, Inc.
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